Python sum Function with Examples

As indicated by its name, the Python sum function serves the purpose of calculating the total of numeric values contained within an iterable, such as a list.

Python sum Function Syntax

sum(iterable, start)

Parameters

• ✅ iterable: iterable can be list, tuples, and dictionaries, but an iterable object must contain numbers.
• ✅ start: The start is added to the sum of numbers in the iterable. If start is not given in the syntax, it is assumed to be 0.

Different Examples for Python sum Function

Here are a few illustrations of the sum function provided below:

Python sum Function Example 1

This example shows sum of the list of numbers:

s = sum([1, 2,2 ])

print(s)

s = sum([1, 2, 2], 10)

print(s)

Output:

Python sum Function Example 2

This example shows sum of floating point numbers:

s = sum([2.5, 2.5, 3])

print(s)

Output:

Python sum Function Example 3

This example shows sum of complex numbers:

s = sum([1 + 2j, 3 + 4j])

print(s)

s = sum([1 + 2j, 3 + 4j], 2 + 2j)

print(s)

s = sum([1 + 2j, 2, 1.5 - 2j])

print(s)

Output:

(4+6j)

(6+8j)

(4.5+0j)